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| author | Tejun Heo <tj@kernel.org> | 2013-01-09 08:05:12 -0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-01-09 08:05:12 -0800 |
| commit | b276a876a014c5fa58a16f247c0933f6c42112e3 (patch) | |
| tree | c49f85e03d11296683ed938864bd823cdeaa614f /block/blk-cgroup.h | |
| parent | d02f7aa8dce8166dbbc515ce393912aa45e6b8a6 (diff) | |
| download | linux-b276a876a014c5fa58a16f247c0933f6c42112e3.tar.gz linux-b276a876a014c5fa58a16f247c0933f6c42112e3.tar.bz2 linux-b276a876a014c5fa58a16f247c0933f6c42112e3.zip | |
blkcg: add blkg_policy_data->plid
Add pd->plid so that the policy a pd belongs to can be identified
easily. This will be used to implement hierarchical blkg_[rw]stats.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Diffstat (limited to 'block/blk-cgroup.h')
| -rw-r--r-- | block/blk-cgroup.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index 24462258200e..40f5b9768aac 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -81,8 +81,9 @@ struct blkg_rwstat { * beginning and pd_size can't be smaller than pd. */ struct blkg_policy_data { - /* the blkg this per-policy data belongs to */ + /* the blkg and policy id this per-policy data belongs to */ struct blkcg_gq *blkg; + int plid; /* used during policy activation */ struct list_head alloc_node; |